Got a very nice surprise when I opened up the teal fabric I had gotten for a backup. When I picked it up, I liked that it had a subtle fish scale pattern. When I actually opened it up, turned out it was suuuuuper bright and shiny, and that it was actually the back side that was being shown. The fish scales were much more prominent. Definitely much better than I had hoped. Completed the first mermaid by making a basic slip cover for the 'tail' and hooked the fin to the end of the feet.
Here's a comparison shot of the back and front of the fabric.
Not work out so great.